diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bf831d9..2b636e3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,7 +34,7 @@ jobs:
     timeout-minutes: 60
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -72,7 +72,7 @@ jobs:
 
       - name: Upload target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-${{ matrix.scala }}
           path: targets.tar
@@ -88,7 +88,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -109,7 +109,7 @@ jobs:
         run: sbt +update
 
       - name: Download target directories (2.12)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.12
 
@@ -119,7 +119,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.13)
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13
 
@@ -162,7 +162,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 996c4b2..a054af4 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,5 @@
 addSbtPlugin("com.github.sbt" % "sbt-unidoc" % "0.6.0")
-addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.8.2")
+addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.8.4")
 addSbtPlugin("com.github.sbt" % "sbt-ghpages" % "0.9.0")
 addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "1.0.0")
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.3.1")